Dr. James C. Huan is the president and chief scientist of OptiMax Dynamic, LLC registered in the United States. His company is engaged in the development and manufacturing of a revolutionary marine propulsor and PD pump of ultra-high capacity invented by him on US and Chinese patents. Before that, Dr. Huan spent more than 20-yrs of his professional career working in the US major defense corporations. After one-year teaching at the Mechanical Engineering Department of Columbia University, New York from 1995 to 1996, he jointed the U.S. Naval Surface Warfare Center, Carderock Division as a researcher. From 1998 to 2008 he worked in the Northrop Grumman Corporation, Newport News Shipbuilding (currently Huntington Ingalls Industries Newport News Shipbuilding) as the principal hydrodynamicist. From 2008 to 2015 he worked in the Science Applications International Corporation (SAIC) as a principal scientist. From 2015 to 2016, his interests moved to commercial marine vessels and oil rigs by working in the American Bureau of Shipping (ABS) as the technological manager of the CFD group at its headquarters. His expertise covered every aspect in the hydrodynamic issues critical to ship and submarine performances. In addition to numerous internal R&D research reports, he published and presented more than a dozen of papers in international well-known journals and conferences. Dr. Huan received his Ph.D. degree in Mechanical Engineering from Columbia University, New York.